From patchwork Fri Dec 29 08:19:10 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 10136497 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 574D260318 for ; Fri, 29 Dec 2017 08:24:58 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 45A762D91C for ; Fri, 29 Dec 2017 08:24:58 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 3A7322DEEB; Fri, 29 Dec 2017 08:24:58 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.8 required=2.0 tests=BAYES_00,DKIM_SIGNED, RCVD_IN_DNSWL_HI,T_DKIM_INVALID autolearn=unavailable version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id DFC022D91C for ; Fri, 29 Dec 2017 08:24:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933012AbdL2IYc (ORCPT ); Fri, 29 Dec 2017 03:24:32 -0500 Received: from bombadil.infradead.org ([65.50.211.133]:60516 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932651AbdL2IYY (ORCPT ); Fri, 29 Dec 2017 03:24:24 -0500 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20170209; h=References:In-Reply-To:Message-Id: Date:Subject:Cc:To:From:Sender:Reply-To:MIME-Version:Content-Type: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id: List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=8xMS7DFldBKVPWVVZ3i0NrEOWqn49uvnyFqEHvONQ2k=; b=RiL31EjeZBQ6uSUW9tt5Ylcbi YH4Mfv4tzVl1lTSvZkDK96j1ZiJ3t+W/NqavTQ81ZK5PBBdPok5zJK3X53C6eS1gjWbB0aeuoRmuC 6i9dH26C3rpiCvwH9f7jTjnb93FfLi/0VibV9tsctQGsGf/Pp6JuGyeLFfV8QABWDNYy7sEKXwzdZ WerQ5x0CntOsFnWv8OPAYw3a5kFTQPA6VBC+c+5CPE+xdLOTuTX2JjialO5h88cm8Tu9Ge0fP1sik h+36yUmxMtDa1zWv9oBChnYEgI7g/mB35ChbOW4ypnMOOg5Stj0NZ3knr8eLTLMTJ2N7Q3SCMHt1K VSKP6lyvg==; Received: from 77.117.237.29.wireless.dyn.drei.com ([77.117.237.29] helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.89 #1 (Red Hat Linux)) id 1eUpxX-00045e-59; Fri, 29 Dec 2017 08:24:07 +0000 From: Christoph Hellwig To: iommu@lists.linux-foundation.org Cc: linux-alpha@vger.kernel.org, linux-snps-arc@lists.infradead.org, linux-arm-kernel@lists.infradead.org, adi-buildroot-devel@lists.sourceforge.net, linux-c6x-dev@linux-c6x.org, linux-cris-kernel@axis.com, linux-hexagon@vger.kernel.org, linux-ia64@vger.kernel.org, linux-m68k@lists.linux-m68k.org, linux-metag@vger.kernel.org, Michal Simek , linux-mips@linux-mips.org, linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, patches@groups.riscv.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, Guan Xuetao , x86@kernel.org, linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 66/67] swiotlb: remove swiotlb_{alloc,free}_coherent Date: Fri, 29 Dec 2017 09:19:10 +0100 Message-Id: <20171229081911.2802-67-hch@lst.de> X-Mailer: git-send-email 2.14.2 In-Reply-To: <20171229081911.2802-1-hch@lst.de> References: <20171229081911.2802-1-hch@lst.de> X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Sender: linux-parisc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-parisc@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Unused now that everyone uses swiotlb_{alloc,free}. Signed-off-by: Christoph Hellwig --- include/linux/swiotlb.h | 8 -------- lib/swiotlb.c | 41 ----------------------------------------- 2 files changed, 49 deletions(-) diff --git a/include/linux/swiotlb.h b/include/linux/swiotlb.h index 5b1f2a00491c..965be92c33b5 100644 --- a/include/linux/swiotlb.h +++ b/include/linux/swiotlb.h @@ -72,14 +72,6 @@ void *swiotlb_alloc(struct device *hwdev, size_t size, dma_addr_t *dma_handle, void swiotlb_free(struct device *dev, size_t size, void *vaddr, dma_addr_t dma_addr, unsigned long attrs); -extern void -*swiotlb_alloc_coherent(struct device *hwdev, size_t size, - dma_addr_t *dma_handle, gfp_t flags); - -extern void -swiotlb_free_coherent(struct device *hwdev, size_t size, - void *vaddr, dma_addr_t dma_handle); - extern dma_addr_t swiotlb_map_page(struct device *dev, struct page *page, unsigned long offset, size_t size, enum dma_data_direction dir, diff --git a/lib/swiotlb.c b/lib/swiotlb.c index 4ea0b5710618..77a40b508db8 100644 --- a/lib/swiotlb.c +++ b/lib/swiotlb.c @@ -157,13 +157,6 @@ unsigned long swiotlb_size_or_default(void) return size ? size : (IO_TLB_DEFAULT_SIZE); } -/* Note that this doesn't work with highmem page */ -static dma_addr_t swiotlb_virt_to_bus(struct device *hwdev, - volatile void *address) -{ - return phys_to_dma(hwdev, virt_to_phys(address)); -} - static bool no_iotlb_memory; void swiotlb_print_info(void) @@ -743,31 +736,6 @@ swiotlb_alloc_buffer(struct device *dev, size_t size, dma_addr_t *dma_handle) return NULL; } -void * -swiotlb_alloc_coherent(struct device *hwdev, size_t size, - dma_addr_t *dma_handle, gfp_t flags) -{ - int order = get_order(size); - void *ret; - - ret = (void *)__get_free_pages(flags, order); - if (ret) { - *dma_handle = swiotlb_virt_to_bus(hwdev, ret); - if (*dma_handle + size - 1 <= hwdev->coherent_dma_mask) { - memset(ret, 0, size); - return ret; - } - - /* - * The allocated memory isn't reachable by the device. - */ - free_pages((unsigned long) ret, order); - } - - return swiotlb_alloc_buffer(hwdev, size, dma_handle); -} -EXPORT_SYMBOL(swiotlb_alloc_coherent); - static bool swiotlb_free_buffer(struct device *dev, size_t size, dma_addr_t dma_addr) { @@ -787,15 +755,6 @@ static bool swiotlb_free_buffer(struct device *dev, size_t size, return true; } -void -swiotlb_free_coherent(struct device *hwdev, size_t size, void *vaddr, - dma_addr_t dev_addr) -{ - if (!swiotlb_free_buffer(hwdev, size, dev_addr)) - free_pages((unsigned long)vaddr, get_order(size)); -} -EXPORT_SYMBOL(swiotlb_free_coherent); - static void swiotlb_full(struct device *dev, size_t size, enum dma_data_direction dir, int do_panic)